Heterotopic ossification(H.O.) is a common complication in spinal cord injured patients. The majority of heterotopic ossification in spinal cord injury occurs around hip joints. Fracture of femur is also a quite common complication in spinal cord injured patient, however H.O. associated with femur fracture at the hip was rarely reported.

The author experienced femur neck fracture in a spinal cord injured patient with preexisting H.O. The proper management of femur neck fracture and the prevention of H.O. were reviewed and discussed.